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31. 发明专利

CA2170954A1 Method for Lining the Internal Surface of a Pipe 未知
公开(公告)号：CA2170954A1
公开(公告)日：1997-04-28
申请号：CA2170954
申请日：1996-03-04
申请人： TOKYO GAS CO LTD , HAKKO CO
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI , IKE NOBUKATSU , OHSHIMA KENJI
IPC分类号： F16L55/16 , B05C7/08 , B05C11/02 , B05D7/22 , B05D7/24 , F16L1/00 , F16L1/024 , F16L55/164
摘要： A method for lining the internal surface of a pipe, said method comprising the steps of:introducing a predetermined amount of a resin into one end of the pipe, andcausing the resin to move through the pipe toward the other end thereof, so as to form a lining layer on the internal surface of the pipe: characterised by the further steps of introducing into the pipe a predetermined amount of solid particulate or flake material so that the flake material adheres to the surface of the resin;inserting into the pipe a pig of a predetermined diameter and causing the pig to move through the pipe along the entire length thereof, thereby embedding the flake material into the resin lining layer, and forming on the pipe internal surface an even resin lining layer having a desired uniform thickness.

32. 发明专利

ES2196505T3 未知
公开(公告)号：ES2196505T3
公开(公告)日：2003-12-16
申请号：ES98310086
申请日：1998-12-09
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , ITAGAKI MASAAKI , MORITA KENJI
IPC分类号： F16L1/024 , B05D7/22 , F16L55/164 , F16L55/162
摘要： In a method of repairing an existing pipeline including a primary pipe (12) and a branch pipe (13) the length of the branch pipe is first measured acoustical. A first lining pig (3), a first batch of a resin (A), a resin transporting pig (31) a liquid absorbing material (32) and a liquid blocking pig (33) are introduced in order into an open end of the branch pipe. The resin and pigs are propelled along the branch pipe by a controlled volume of liquid (W) until the first lining pig (3) reaches the branch position (12') communicating with the primary pipe (12). The length of the primary pipe (12) is then measured acoustically and a similar arrangement of a second lining pig (3') a second batch of resin (A') a second resin transporting pig (31) a second liquid absorbing material (32') and a second liquid blocking pig (33') are then transported to the inner mains end of the primary pipe (12) by a controlled volume of propellant liquid (W). The second pigs are then withdrawn by sucking out the propellant liquid (W') so coating the inside of the primary pipe with resin. Then the first pigs are withdrawn by sucking out the first propellant liquid (W) so coating the inside of the branch pipe with resin.

33. 发明专利

DE69709196T2 未知
公开(公告)号：DE69709196T2
公开(公告)日：2002-08-29
申请号：DE69709196
申请日：1997-02-06
申请人： TOKYO GAS CO LTD , NISSHIN SPINNING
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI , OKABE KAZUKI
IPC分类号： B32B1/08 , B29C47/02 , B29C63/36 , B29L9/00 , B29L23/00 , B32B5/02 , B32B27/12 , B32B27/34 , B32B27/36 , B32B27/40 , D04B1/00 , F16L1/00 , F16L55/162 , F16L55/165
摘要： There is provided a reversible lining tube 101 for repairing an existing pipeline 109. Such a lining tube 101 is reversible into the existing pipeline 109 so that its initial inner surface becomes outer surface which adheres to the internal surface of the pipeline 109. In detail, the reversible lining tube 101 includes an elastomer layer 104 and a thread-knitted layer 103, prior to reversal into the existing pipeline 109 the elastomer layer 104 is an outer layer and the tread-knitted layer is an inner layer, upon reversal into the existing pipeline 109 the elastomer layer 104 becomes an inner layer and the thread-knitted layer becomes an outer layer which adheres to the internal surface of the existing pipeline 109.

34. 发明专利

CA2332412C A REVERSIBLE LINNING TUBE FOR REPAIRING AN EXISTING PIPELINE 未知
公开(公告)号：CA2332412C
公开(公告)日：2002-01-08
申请号：CA2332412
申请日：1997-02-05
申请人： TOKYO GAS CO LTD , NISSHIN SPINNING
发明人： TOYODA SHIGERU , ITAGAKI MASAAKI , YAGI SHUICHI , OKABE KAZUKI
IPC分类号： B32B1/08 , B29C47/02 , B29C63/36 , B29L9/00 , B29L23/00 , B32B5/02 , B32B27/12 , B32B27/34 , B32B27/36 , B32B27/40 , D04B1/00 , F16L1/00 , F16L55/162 , F16L55/165
摘要： There is provided a reversible lining tube 101 for repairing an existing pipeline 109. Such a lining tube 101 is reversible into the existing pipeline 109 so that its initial inner surface becomes outer surface which adheres to the internal surface of the pipeline 109. In detail, the reversible lining tube 101 includes an elastomer layer 104 and a thread-knitted layer 103, prior to reversal into the existing pipeline 109 the elastomer layer 104 is an outer layer and the tread-knitted layer is an inner layer, upon reversal into the existing pipeline 109 the elastomer layer 104 becomes an inner layer and the thread-knitted layer becomes an outer layer which adheres to the internal surface of the existing pipeline 109.

35. 发明专利

CA2196863C A REVERSIBLE LINING TUBE FOR REPAIRING AN EXISTING PIPELINE 未知
公开(公告)号：CA2196863C
公开(公告)日：2001-12-11
申请号：CA2196863
申请日：1997-02-05
申请人： TOKYO GAS CO LTD , NISSHIN SPINNING
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI , OKABE KAZUKI
IPC分类号： B32B1/08 , B29C47/02 , B29C63/36 , B29L9/00 , B29L23/00 , B32B5/02 , B32B27/12 , B32B27/34 , B32B27/36 , B32B27/40 , D04B1/00 , F16L1/00 , F16L55/162 , F16L55/165
摘要： There is provided a reversible lining tube for repairing an existing pipeline. Such a lining tube is reversible into the existing pipeline so that its initial inner surface becomes outer surface which adheres to the internal surface of the pipeline. In detail, the reversible lining tube includes an elastomer layer and a flock layer, prior to reversal into the existing pipeline the elastomer layer is an outer layer and the flock layer is an inner layer, upon reversal into the existing pipeline the elastomer layer becomes an inner layer and the flock layer becomes an outer layer which adheres to the internal surface of the existing pipeline.

36. 发明专利

DE69517393T2 未知
公开(公告)号：DE69517393T2
公开(公告)日：2000-10-12
申请号：DE69517393
申请日：1995-11-15
申请人： TOKYO GAS CO LTD
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： F16L55/164 , F16L55/1645 , F16L55/162
摘要： There are provided methods of lining the internal surface of a pipe (7), which includes first inserting two lining pigs (3) into the pipe (7) and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe (7), and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. There are also provided improved liquid blocking pigs (6) for use in pipe lining treatment, each of such pigs (6) comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.

37. 发明专利

CA2255377A1 METHOD OF REPAIRING AN EXISTING PIPELINE INCLUDING A MAIN PIPE AND A BRANCH PIPE 未知
公开(公告)号：CA2255377A1
公开(公告)日：1999-06-10
申请号：CA2255377
申请日：1998-12-09
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , MORITA KENJI , ITAGAKI MASAAKI
IPC分类号： F16L1/024 , B05D7/22 , F16L55/164 , F16L55/18 , F16L55/165
摘要： A method of repairing an existing pipeline including a main pipe and a branch pipe, comprises the steps of introducing a first lining pig, a first batch of a resin, and some other pigs into the branch pipe and supplying a first batch of a liquid into the branch pipe until the first lining pig reaches a branching position; introducing a second lining pig, a second batch of a resin, and some other pigs into the main pipe and supplying a second batch of a liquid into the main pipe until the second lining pig reaches an inner end thereof; drawing back the second batch of the liquid out of the main pipe so as to cause the second batch of the resin to move back toward an open end of the main pipe, thereby forming a resin lining layer on the internal surface of the main pipe; drawing back the first batch of the liquid out of the branch pipe so as to cause the first batch of the resin to move back toward an open end of the branch pipe, thereby forming a resin lining layer on the internal surface of the branch pipe.

38. 发明专利

CA2163309A1 Methods of Lining the Internal Surface of a Pipe 未知
公开(公告)号：CA2163309A1
公开(公告)日：1996-05-29
申请号：CA2163309
申请日：1995-11-20
申请人： TOKYO GAS CO LTD
发明人： TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： F16L55/164 , F16L55/1645 , F16L55/162
摘要： There are provided methods of lining the internal surface of a pipe (7), which includes first inserting two lining pigs (3) into the pipe (7) and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe (7), and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. There are also provided improved liquid blocking pigs (6) for use in pipe lining treatment, each of such pigs (6) comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.

39. 发明专利

CA2162436A1 Methods of Lining the Internal Surface of a Pipe 未知
公开(公告)号：CA2162436A1
公开(公告)日：1996-05-15
申请号：CA2162436
申请日：1995-11-08
申请人： TOKYO GAS CO LTD
发明人： SATAKE SHINOBU , YAHATA TADAO , SHIGEFUJI TAKASHI , TOYODA SHIGERU , YAGI SHUICHI , ITAGAKI MASAAKI
IPC分类号： B05C7/08 , F16L55/16 , F16L55/164 , F16L55/38 , B05D7/22
摘要： To line the internal surface of a pipe (111,60) which has a first portion connected to a second portion (62) of larger diameter, first and second pigs (63,64) with a quantity of resin between them are introduced into the first portion of the pipe and positive pressure is applied behind the rearmost pig to force the pigs and the resin along the length of the pipe to line the internal surface of the pipe. The front pig (63) is of resilient material and is compressed as it is passed through the pipe. This pig has surface grooves on it to permit air to pass between it and the surface of the pipe when it is in the second portion of the pipe.

40. 发明专利

DE69812856T2 未知
公开(公告)号：DE69812856T2
公开(公告)日：2004-05-06
申请号：DE69812856
申请日：1998-12-09
申请人： TOKYO GAS CO LTD
发明人： YAGI SHUICHI , ITAGAKI MASAAKI , MORITA KENJI
IPC分类号： F16L1/024 , B05D7/22 , F16L55/164 , F16L55/162
摘要： In a method of repairing an existing pipeline including a primary pipe (12) and a branch pipe (13) the length of the branch pipe is first measured acoustical. A first lining pig (3), a first batch of a resin (A), a resin transporting pig (31) a liquid absorbing material (32) and a liquid blocking pig (33) are introduced in order into an open end of the branch pipe. The resin and pigs are propelled along the branch pipe by a controlled volume of liquid (W) until the first lining pig (3) reaches the branch position (12') communicating with the primary pipe (12). The length of the primary pipe (12) is then measured acoustically and a similar arrangement of a second lining pig (3') a second batch of resin (A') a second resin transporting pig (31) a second liquid absorbing material (32') and a second liquid blocking pig (33') are then transported to the inner mains end of the primary pipe (12) by a controlled volume of propellant liquid (W). The second pigs are then withdrawn by sucking out the propellant liquid (W') so coating the inside of the primary pipe with resin. Then the first pigs are withdrawn by sucking out the first propellant liquid (W) so coating the inside of the branch pipe with resin.

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